Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Elisabeth Sjöholm"'
Publikováno v:
ACS Sustainable Chemistry & Engineering. 8:6826-6833
Carbon fibers (CFs) are gaining increasing importance in lightweight composites, but their high price and reliance on fossil-based raw materials stress the need for renewable and cost-efficient alternatives. Kraft lignin and cellulose are renewable m
Autor:
Maria Sedin, Elisabeth Sjöholm, Jenny Bengtsson, Hans Theliander, Carina Olsson, Andreas Bengtsson, Kerstin Jedvert
Publikováno v:
Holzforschung. 72:1007-1016
To meet the demand for carbon-fibre-reinforced composites in lightweight applications, cost-efficient processing and new raw materials are sought for. Cellulose and kraft lignin are each interesting renewables for this purpose due to their high avail
Publikováno v:
Environmental Technology & Innovation. 7:160-168
A new type of activated carbon derived from Kraft lignin, separated from black liquor in the paper pulp process, was evaluated for its use as an alternative sorbent to commercial powdered activated carbons (AC) from anthracite ( AC COAL ) or coconut
Publikováno v:
Holzforschung. 71:275-283
A part of kraft lignin (KL) can be used as a value-added product without detracting the chemical recovery and the energy balance of the kraft mill. The focus of this study is the production of light-weight carbon fibres (CFs) from KL obtained by the
Publikováno v:
Holzforschung. 71:27-34
The influence of pH on the Mannich reaction (amino alkylation in the presence of formaldehyde) has been analyzed by liquid chromatography-mass spectrometry (LC-MS) with vanillin (VA) as a model compound and a purified softwood kraft lignin (SKL) as a
Autor:
Konstantinos G. Kalogiannis, Chrysoula M. Michailof, Elisabeth Sjöholm, Stylianos D. Stefanidis, Angelos A. Lappas
Publikováno v:
Journal of Analytical and Applied Pyrolysis. 115:410-418
Thermal and catalytic pyrolysis of various types of lignin and their influence on the yield and the quality of the produced lignin oil were studied. Lignins originated from a mixture of pine and spruce wood (softwood), a mixture of birch and aspen wo
Publikováno v:
Journal of Applied Polymer Science. 130:3689-3697
Mechanical characterization of the first generation of softwood kraft lignin-based carbon fibers (CF) was carried out. The single-fiber tensile tests of filaments with different diameters and length were performed to evaluate stiffness and strength o
Publikováno v:
Journal of Applied Polymer Science. 129:1274-1279
Kraft lignin obtained from the pulping of wood is an interesting new precursor material for carbon fiber production because of its high carbon content and ready availability. However, continuous spinning of softwood kraft lignin (SKL) has been imposs
Publikováno v:
Journal of Applied Polymer Science. 128:3824-3830
Renewable resources, such as kraft lignin, have shown great potential as precursors for carbon fiber production. This manuscript reports an investigation into the stabilization of softwood kraft li ...
Publikováno v:
hfsg. 66:141-147
With the aim of investigating kraft lignin as a raw material for carbon fibre production, different lignins have been stabilised in air at conditions varied according to a full factorial experimental design. The lignins under examination were purifie